Iieinrich htjbner



(No Model.)

VH.HU1. ,1\IER. MINERS SAFETY LAMP.

Patented June 6, 1893.

I." lulllllllillllllnul@um Q4" IIIIIIIIINIHIIIIHIIHIllllmlll!!! g3WIT/VESSES yzc 1 Cyan/U25@ TME mums Per s co, Pnooumo UNITED STATES lPATENT OFFICE.

HEINRICH HBNER, OF HERMSDORF, GERMANY.

IVIINERS SAFETY-LAM P.

SPECIFICATION forming part of Letters Patent No. 499,117, dated June 6,1893.

Application filed November 8, 1892. Serial No. 451,411. (N0 model-l T0all wir/0117, t may concern/ Be it known that I, HEINRICH HBNER, ofHermsdorf, Prussia, Germany, have invented new and useful Improvementsin Miners Safety-Lamps, of which the following is a full, clear, andexact description.

The invention relates to that form of miners lamps in which ignition ofthe wick is accomplished by the explosion of a percussion cap or thelike, and the object of the invention is to improve lamps of thischaracter` to the end that safety may be promoted,and further to providea construction in which the chimney and the gauze cylinderl may beconnected and disconnected from the reservoir with convenience Aanddispatch, and in which the accidental disconnection of the parts shallbe guarded against.

A further object is to improve the lamp in its various details.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a side elevation of a miners safety lamp embodying myimprovements, the lower portion being in section. Fig. l"L is a brokenplan view. Fig. 2 is a side elevation of the dome or hood to which issecured the hammer for exploding the caps. Fig. 2a is a plan View ofsuch dome. Fig. 3 is a side elevation of the toothed ring that carriesthe capsupporting sleeve. Fig. 3iL is a plan View of such ring. Fig. 4is aside elevation of the cap-carrying sleeve. Fig. 4J is a plan view ofsuch sleeve; and Fig. 5 is a plan view of the disk containing thepercussion caps.

In constructing a lamp in accordance with my invention, a suitablereservoir A is provided, having formed or secured to its top a, anannular ring a ,in which external threads are formed, and to saidthreaded ring a', the base ring T, of the lamp frame F, is screwed.

On the top ct of the reservoir A, there is also formed or secured a necka2, which receives the cylindrical lower end m2 of the burner M, that isheld to the neck a2 by a screw connection. The burner M is graduallycontracted at its upper end to form a tubular termination, into whichthe upper end of the wick tube J, fits. The wick tube J is provided witha lateral lug K, which is tapped for the reception of the threaded npperend of the spindle H, and the latter extends downward through the bottomof the reservoir A, and is providedrwith a disk V, whereby it may heturned for raising or lowering the wick tube J. A gauze cylinder U,

Within the reservoir, incloses the wick tube J and spindle H.

On an exterior shoulder d3 on the neck a2 0f the reservoir, a ring g2,is fitted to rotate, said ring being toothed on its exterior, its teethmeshing with a pinion g', formed on the upper end of a spindle G, thatextends through the reservoir and the bottom of the latter, the lowerend of the spindle having a disk W, whereby it may be turned. On thering g2 an annular vertical iiange g3 is formed, over which iits thesleeve L that carries the percussion caps, an engagement of the ring g2and sleeve L being effected by a lug or proj ection n on the ringfitting a corresponding opening n in the said sleeve, whereby the sleevewill rotate in response to therotation of the ring g2. The sleeve L hasa horizontal, internal flange t', which forms a seat for the disks :c inwhich the caps are embedded, and said flange z', at its inner edge isupturned and exteriorly threaded as at t" ,for the reception of acap N,that is contracted at its upper end, said upper end having an orificen2, and fitting snugly around the contracted end of the burner M,slightly below the top of the latter.

Above the horizontal seat t', the sleeve L is formed with a circularseries of ratchet teeth l, which in the rotation of the sleeve, inresponse to the turning of the spindle G, and sleeve L, willsuccessively lift the spring hammer P, and cause it to explode one ofthe caps in the disk The hammer P, is secured to the inner surface of adome O, said dome being exterior to the sleeve L, and having its loweredge turned outward as at Q.

The rods F,of the lamp frame rise from the base ring T, to the top plateD, the latter having a ring R, by which the lamp may be carried.

Intermediate of the base ring and top plate is a ring C, on which thegauze cone or gauze cylinder C of the lamp is supported, the ring Cbeing supported from the base ring T, by vertical rods E. The ring C,serves also to IOO clamp the glass chimney B in place, and the loweredge of the said chimney engages and clamps the outwardly turned edge Qof the dome O, a ring Q being interposed between the said edge Q and thechimney, if desired. One of the rods F, as shown at the right of Fig. lis threaded in the base ring T, and at its upper end it is provided withan arm or handle y, for rotating it.

When the frame has been screwed bodilu onto the vertical flange a', ofthe reservoir to clamp the chimney B and dome O in place against the topof the reservoir, the arm F that rotates is turned to cause its lowerthreaded end to project through the bottom of the ring T, and engage arecess or hole 0,4 in the top a ofthe reservoir, thus preventingaccidental unscrewing of the frame.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In a miners safety lamp, the combination with theoil reservoir provided with a burner, an externally threaded ring a anda depression a4 in the top, outside of the ring 0,', and the chimney B,the lower end of which fits withing the ring a, of the frame comprisingthe lower ring T screwing on the ring d', the middle ring C tting theupper end of the chimney B and carrying the gauze C', the top ring D andthe vertical rods F connecting all three of said rings one of the barshaving a screw threaded end passing through ath readed aperture in ringT into the depression d4 and locking the frame to the reservoir andprovided at its upper end with an operating arm or crank y,substantially as set forth.

2. In a niiners safety lamp, the combination, with the burner, of asleeve outside the burner and means for rotating it, said sleeve havinga horizontal seat forreceiving percussion caps or the like, and formedon its upper edge with teeth, and a dome outside the said sleeveprovided with a hammer on the under side of its overhanging portionprojecting into the path of the said teeth to be retracted and releasedthereby to strike and explode a cap, substantially as described.

3. In a miners safety lamp, the combination with the burner, of aperipherally toothed ring outside of the burner, and means for actuatingsaid ring, a sleeve detachably held to the upper side of the toothedring, and itself provided on its upper edge with ratchet teeth andprovided further with a horizontal internal seat for receivingpercussion caps or the like, and a dome outside the said sleeve andhaving a spring hammer, adapted to be lifted by the ratchet teeth of thesleeve,substantially as described.

4. In a nliners safety lamp, the combination, with a reservoir, and aburner thereon having a contracted, tubular upper end, a Wick tube inthe reservoir, movable into said end a peripherally toothed ring outsidethe burner, a spindle extending through thebottorn of the reservoirandprovided at its upper end with a pinion meshing with said ring, a sleevedetachably held to the ring and provided on its upper edge with ratchetteeth and with a horizontal internal seat for receiving percussion capsor thelike, and provided with a tubular threaded extension 1l', a cap Nscrewed on said extension and having a' central aperture through whichthe contracted upper end of the burner projects and a dome having aspring hammer for exploding the caps, the said hammer being operated bythe ratchet teeth above mentioned, substantially as described.

In witness whereof'I have hereunto set my hand in presence of twowitnesses..

HEINRICH HUBNER.

Vitnesses:

A. RATHHALLER, TH. EHRENBERGH.

